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Diagnose ball-mill main-bearing temperature rise after restart from lubrication sequence, oil condition, cooling, load distribution, contamination and alignment.

Diagnose silo discharge-gate chattering from control hunting, stick-slip friction, actuator/linkage condition, aeration forces and downstream restriction.

Diagnose an automatic lubrication pump that runs but delivers no grease by isolating pump pressure, circuit type, divider/injector operation, blocked or leaking lines, grease condition and the final bearing point.

Diagnose compressed-air receiver drain failure and water carryover by proving actual drain discharge, aftercooler/separator performance, receiver liquid removal and dryer inlet condition.

Diagnose low ESP field current after rapping by correlating voltage/current, spark rate, rapper timing, hopper condition, adjacent-field behavior and electrode/insulator faults.

Diagnose a false kiln-shell scanner cold spot by determining whether it follows the rotating shell or stays fixed in scanner coordinates, then checking optics, purge, line of sight, emissivity and reference temperature.

Diagnose cooling-tower approach deterioration after cleaning by verifying wet-bulb and water temperatures, then checking fan airflow, nozzle distribution, fill seating, circulation flow, valve lineup and recirculation.

Diagnose MV motor current imbalance after cable termination by separating supply-voltage imbalance, high-resistance joints, cable damage, CT errors and motor-internal causes.

Diagnose rising compressed-air dew point despite a running dryer by separating measurement error, bypass leakage, hot inlet air, excess demand, drain faults and dryer-process problems.

Diagnose false O2 and CO readings caused by gas-analyzer sample-line condensation using heated-line temperature, sample flow, drains, filters, leaks and calibration response.